MODEL FOR THE FORMATION OF A MICROSCOPIC TURING STRUCTURE - THE FACETING OF PT(110) DURING CATALYTIC-OXIDATION OF CO

被引：49

作者：

IMBIHL, R ^{[1
]}

REYNOLDS, AE ^{[1
]}

KALETTA, D ^{[1
]}

机构：

[1] UNIV TUBINGEN,ZENTRUM DATENVERARBEIT,W-7400 TUBINGEN 1,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.67.275

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A Monte Carlo simulation of the formation of regular facet patterns during catalytic oxidation of CO on Pt(110) has been conducted. The simulation was based on the elementary steps of the surface reaction, the CO-induced 1 x 1 arrow pointing right over arrow pointing left 1 x 2 phase transition, and the enhancement of O2 adsorption at step sites. The model can reproduce the formation of sawtoothlike facet patterns with a spacing of approximately 100 to 200 angstrom. The facets represent a Turing structure caused by the coupling of kinetic instabilities with the mass transport of Pt atoms.

引用

页码：275 / 278

页数：4

共 11 条

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